There is a "longevity star" jujube tree in the northeast of Leling County. It is said that Luo Chenggong, a peasant uprising army at the end of Sui Dynasty, tied his horse to rest under this tree. Qing Qianlong's "Leling County Records" records that in the 19th year of Wanli in the Ming Dynasty, Leling County ordered the king to "teach the people to plant trees and plant jujubes for the people, and those who have classes plant jujubes to redeem them, so there are many jujubes in the city." Leling in Qing Dynasty is known as a treasure trove of geomantic omen. The poet Wu Taipang wrote in his poem, "In June, the lotus is blue, and thousands of dates shoot red clouds." It vividly describes the grand occasion of planting jujube trees in Leling at that time and the harvest scene of mature jujube trees covered with branches in autumn